Oralia Dominguez (San Luis Potosí, Mexico, 25 October 1925 - Milan, Italy, 25 November 2013) was a Mexican operatic mezzo-soprano who performed at many of the world's leading opera houses. A recording of this performance has circulated since that time and is still regarded as one of the most exciting performances of this very popular opera on record. She made her European debut in 1953 at London's Wigmore Hall. In the same year she first appeared at La Scala, Milan, in Adriana Lecouvreur, and performed with the company inVerdi's Requiem at the Lucerne Festival. She recorded the Requiem the following year under the direction of Victor de Sabata. In 1954, she appeared throughout Europe with such conductors as Tullio Serafin, Igor Markevitch, Paul Kletzki and Herbert von Karajan. In 1955, she made her debut at the Royal Opera House Covent Garden singing the role of Madame Sosostris in the world premiere of Michael Tippett's The Midsummer Marriage. Also in England, she appeared at Glyndebourne in the late 1950s as Isabella in L'italiana in Algeri and Mistress Quickly in Falstaff, and at Covent Garden in the latter role in 1967-8. [source from Wikipedia]